4mm Long Drill Cobalt M4 Long Drills

4mm Long Drill Cobalt M4 drills 119mm overall length

Super Cobalt Straight Shank Long Drills with heavy duty construction. Used for drilling very high tensile material. Made to AISI M42 / 8% Cobalt. Made in 2mm to 13mm sizes. British made excellent 1st quality to DIN340RN